Collar can collar mounting method



April 26, 1949- J. COYLE ET AL COLLAR CAN COLLAR MOUNTING METHOD Original Filed Dec. 50, 194-4 1N VEN TOR. John C0919, d WiHiamF. Pune Patented Apr. 26, 1949 UNITED STATES COLLAR CAN COLLAR MOUNTING METHOD John Coyle and William F. Punte, Baltimore, Md., assignors to Continental Can Company, Inc., New York, N. Y., a corporation of New York Original application December 30, 1944, Serial No.

Divided and this application January 20, 1947, Serial No. 723,190

4 Claims.

The invention relates generally to metallic receptacles, and more particularly to the type known as collar cans wherein are provided tear strip structures adapted to be wound on keys and by this means torn out of the body walls of the cans in order to effect an opening thereof, and it primarily seeks to provide a novel method of mounting collars of the type shown in our copending application for U. S. Letters Patent Serial Number 570,654, filed December 30, 1944, of which the present application constitutes a division.

In cans of the type stated the tear strips usually are defined by parallel score lines which surround the cans adjacent the upper end closures thereof, and a collar is snugly fitted within the upper end of each can in position for extending upwardly from the upper extremity of the can body resulting from the tearing out of the rip strip, thereby to maintain the desired can body wall height and provide a support neck over which the skirt or body wall portion remaining attached to the upper end closure can be telescoped to ellect a reclosure of the can. It is the purpose of the present invention to provide a novel method of mounting collars of the type shown in the hereinabove mentioned copending patent application, said collar including an annularly pleated portion, and said method consisting in inserting the collar into the uper end of the can body having a preformed, outwardly projecting bead, and then partially collapsing the pleats to cause a portion thereof to project into said bead and effect a collar anchoring, engagement in the can body.

With the above and other objects in view that will hereinafter appear, the nature of the invention will be more fully understood by following the detailed description, the appended claims and the several views illustrated in the accompanying drawings.

In the drawings:

Figure l is a part side elevation and part vertical cross sectional view of a can body embodying the invention.

Figure 2 is an enlarged fragmentary sectional view illustrating the collar inserted in the can body, the shape of the collar prior to the folding of the pleats therein being shown in dotted lines.

Figure 3 is an enlarged fragmentary sectional view illustrating the collar per se.

Figure 4 is an enlarged fragmentary sectional view illustrating a modified arrangement in which the collar folds or pleats are collapsed si multaneously at opposite ends toward a stationary central plane.

In this disclosure, the invention is illustrated as embodied in a can including a body 5, and a lower end closure 6. It is to be understood that a top end closure (not shown) ultimately will be applied, said closure preferably being seam secured on the can body in the conventional manner.

The can body 5 is provided adjacent its upper end with an outwardly directed bead I and an inwardly directed bead 8 just below the bead I, and between the bead and the upper end extremity of the body said body is scored in the conventional manner to provide a tear strip 9 adapted to be wound about a key and torn from the wall of the can body in the manner well known in the art for effecting an opening of the can.

According to the invention a collar including a main body portion [0 is snugly fitted within the upper end of the can body, and when the collar is properly mounted in the can body, the main body portion thereof extends above and below the tear strip 9 in the manner clearly illustrated in Figure 2. At its upper extremity the collar body is equipped with an inwardly curled bead l l, and at its lower extremity the collar is provided with an annularly pleated wall portion generally designated 12. The collar wall pleating is formed to comprise two upper and lower inwardly directed flange portions l3, and these flange portions 13 join with two outwardly directed annular flange portions l4 joined at their outer ends to provide a nose or rib Hi. It will be observed by reference to Figures 2 and 3 that the flange portions 14 are wider than the upper and lower flange portions l3, and that the outwardly directed nose or rib l5 normally is disposed within the outside diameter of the collar so as to permit insertion of the collar into the can body.

In effecting the secure mounting of the collar in the can body, the collar is inserted in the can body in the manner illustrated in dotted lines in Figure 2 with the lower edge extremity resting upon the inwardly directed bead 8. Thereafter, the pleats or flange portions l3 and M are partially collapsed or folded together in the manner illustrated in full lines in said figure and by reason of the differences in widths of the flange portions l3 and M, the anchoring nose or rib I5 is forced outwardly beyond the outer diameter of the collar body ill into collar anchoring engagement in the body bead 1.

The lower edge extremity of the collar, preferably, but not necessarily, maintains seat on the can body bead 8 as at 16. If desired, the partial collapsing or folding together of the pleated collar portion l2 comprising the flange portions l3, I3 and the connected flange portions l4, M can be so performed as to maintain the anchoring nose or rib l5 and the center of the can body bead in the same horizontal plane during the anchoring of the collar in the can body as indicated at IT in Figure 4. In this manner of anchoring the collar in the can body, the lower edge 3 extremity will be pulled away slightly above the body bead 8 as indicated at l8.

Whether the anchoring of the collar in the can body bead is brought about as indicated in Figure 2, or as in Figure 4, depends upon the type of apparatus employed in effecting the partial collapsing or folding together of the pleats or flange portions i3 and l i. Such apparatus is not disclosed herein because obviously various types of apparatus can be used, and the particular types of apparatus form no part of the present invention.

By forming and mounting the collar in the manner hereinbefore described, said collar will not only be securely anchored in the can body, but it will be so mounted as to present no raw metal edge portions in position for being contacted by the hand of a user of the can.

It is to be understood that the collar herein disclosed may comprise an endless band such as would be formed from a drawn ring, or it may be shaped from a strip joined at its ends in an approved manner. An example of the last mentioned type of collar is shown in the copending application for U. S. Letters Patent, Serial Number 542,961, filed by John Coyle and William F. Punte, on June 30, 1944, now Patent No. 2,433,031, granted December 23, 1947. When collars formed from end joined strips are employed, the joint or seam disclosed by said Coyle and Punte will be found desirable because in this form of joint or seam the multiple thicknesses of collar band metal are disposed only at the central cylindriform body portion of the collar and no overlapping of wall thicknesses is presented at the upper edge curl or the lower edge bent portions of the collar.

It should be apparent that collars constructed and mounted in the manner herein disclosed can be incorporated in oval cans, or in square or oblong cans having rounded corners as well as in the more commonly used round cans.

While specific example disclosures of method steps by which pleated can collars can be securely mounted in collar cans are made herein, it is to be understood that said method steps may be varied to suit different conditions incidental to the manufacture and form of particular container structures without departing from the spirit and scope of the invention as defined in the appended claims.

We claim:

1. A method of mounting a collar in a body of a collar can, said body having an outwardly directed bead and said collar including a pleated portion having an outwardly directed nose formed by inwardly diverging flat flange portions and joined to the collar by outwardly directed flat flange portions which are narrower than said diverging flange portions and which are efiective to place said nose normally within the circumference of the collar, said method comprising the steps of inserting the collar into the can body, and then partially collapsing said pleated portion to decrease the included angles between said inwardly diverging flanges and between said inwardly diverging flanges and said outwardly directed flanges to by this means force the nose outwardly into collar anchoring contact in the can body bead.

2. A method of mounting a collar in a body of a collar can, said body having an outwardly directed bead and said collar including a pleated portion having an outwardly directed, nose formed by inwardly diverging flat flange portions and joined to the collar by outwardly directed flat flange portions which are narrower than said diverging flange portions and which are effective to place said nose normally within the circumference of the collar, said method comprising the steps of inserting the collar into the can body, and then bringing about relative movement between the end extremities of the collar to lessen the length thereof in a manner for partially collapsing said pleated portion to decrease the included angles between said inwardly diverging flanges and between said inwardly diverging flanges and said outwardly directed flanges to by this means force the nose outwardly into collar anchoring contact in the can body bead.

3. A method of mounting a collar in a body of a collar can, said body having an outwardly directed bead and said collar including a pleated portion having an outwardly directed nose formed by inwardly diverging flat flange portions and joined to the collar by outwardly directed flat flange portions which are narrower than said diverging flange portions and which are effective to place said nose normally within the circumference of the collar, said method comprising the steps of inserting the collar into the can body and then moving one end of the collar relative to the other end thereof to lessen the length thereof in a manner for partially collapsing said pleated portion to decrease the included angles between said inwardly diverging flanges and between said inwardly diverging flanges and said outwardly directed flanges to by this means force the nose outwardly into collar anchoring contact in the can body bead.

4. A method of mounting a collar in a body of a collar can, said body having an outwardly directed bead and said collar including a pleated portion having an outwardly directed nose formed by inwardly diverging flat flange portions and joined to the collar by outwardly directed flat flange portions which are narrower than said diverging flange portions and which are efiective to place said nose normally within the circumierence of the collar, said method comprising the steps of inserting the collar into the can body, and then moving the ends of the collar toward each other to lessen the length thereof in a manner for partially collapsing said pleated portion to decrease the included angles between said inwardly diverging flanges and between said inwardly diverging flanges and said outwardly directed flanges to by this means force the nose outwardly into collar anchoring contact in the can body bead.

JOHN COYLE.

WILLIAM F. PUNTE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,811,106 Aulbach June 23, 1931 1,839,435 Widell Jan. 5, 1932 1,849,768 Punte Mar. 15, 1932 2,333,841 Bugge Nov. 9, 1943 2,403,788 Coyle et al. July 9, 1946 

